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genirq: make irqreturn_t an enum

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Impact: cleanup

Remove the 2.4 compabiliy cruft

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>
This commit is contained in:
Thomas Gleixner
2008-09-30 23:14:27 +02:00
parent c8e2aeef0b
commit bedd30d986
2 changed files with 12 additions and 20 deletions
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28
include/linux/irqreturn.h
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@ -1,25 +1,17 @@
/* irqreturn.h */
#ifndef _LINUX_IRQRETURN_H
#define _LINUX_IRQRETURN_H
/*
* For 2.4.x compatibility, 2.4.x can use
*
* typedef void irqreturn_t;
* #define IRQ_NONE
* #define IRQ_HANDLED
* #define IRQ_RETVAL(x)
*
* To mix old-style and new-style irq handler returns.
*
* IRQ_NONE means we didn't handle it.
* IRQ_HANDLED means that we did have a valid interrupt and handled it.
* IRQ_RETVAL(x) selects on the two depending on x being non-zero (for handled)
/**
* enum irqreturn
* @IRQ_NONE interrupt was not from this device
* @IRQ_HANDLED interrupt was handled by this device
*/
typedef int irqreturn_t;
enum irqreturn {
IRQ_NONE,
IRQ_HANDLED,
};
#define IRQ_NONE (0)
#define IRQ_HANDLED (1)
#define IRQ_RETVAL(x) ((x) != 0)
typedef enum irqreturn irqreturn_t;
#define IRQ_RETVAL(x) ((x) != IRQ_NONE)
#endif