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[PATCH] adjust handle_IRR_event() return type 

Correct the return type of handle_IRQ_event() (inconsistency noticed during
Xen development), and remove redundant declarations.  The return type
adjustment required breaking out the definition of irqreturn_t into a
separate header, in order to satisfy current include order dependencies.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jan Beulich 2006-06-23 02:06:00 -07:00 committed by Linus Torvalds
parent a5d6839b75
commit 908dcecda1
13 changed files with 31 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/asm-alpha/irq.h
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@ -92,8 +92,4 @@ extern void enable_irq(unsigned int);
struct pt_regs;
extern void (*perf_irq)(unsigned long, struct pt_regs *);
struct irqaction;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* _ALPHA_IRQ_H */

4
include/asm-arm/irq.h
View File

@ -47,10 +47,6 @@ void disable_irq_wake(unsigned int irq);
void enable_irq_wake(unsigned int irq);
int setup_irq(unsigned int, struct irqaction *);
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
extern void migrate_irqs(void);
#endif

4
include/asm-arm26/irq.h
View File

@ -44,9 +44,5 @@ extern void enable_irq(unsigned int);
int set_irq_type(unsigned int irq, unsigned int type);
int setup_irq(unsigned int, struct irqaction *);
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif

4
include/asm-h8300/irq.h
View File

@ -63,8 +63,4 @@ extern void enable_irq(unsigned int);
extern void disable_irq(unsigned int);
#define disable_irq_nosync(x) disable_irq(x)
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* _H8300_IRQ_H_ */

4
include/asm-m68k/irq.h
View File

@ -130,8 +130,4 @@ extern volatile unsigned int num_spurious;
*/
extern irq_node_t *new_irq_node(void);
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* _M68K_IRQ_H_ */

4
include/asm-m68knommu/irq.h
View File

@ -87,8 +87,4 @@ extern void (*mach_disable_irq)(unsigned int);
#define disable_irq(x) do { } while (0)
#define disable_irq_nosync(x) disable_irq(x)
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* _M68K_IRQ_H_ */

4
include/asm-s390/irq.h
View File

@ -21,10 +21,6 @@ enum interruption_class {
#define touch_nmi_watchdog() do { } while(0)
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* __KERNEL__ */
#endif

4
include/asm-sparc/irq.h
View File

@ -181,8 +181,4 @@ extern struct sun4m_intregs *sun4m_interrupts;
#define SUN4M_INT_SBUS(x) (1 << (x+7))
#define SUN4M_INT_VME(x) (1 << (x))
struct irqaction;
struct pt_regs;
int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif

2
include/asm-v850/irq.h
View File

@ -62,8 +62,6 @@ extern void disable_irq (unsigned int irq);
/* Disable an irq without waiting. */
extern void disable_irq_nosync (unsigned int irq);
extern int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
#endif /* !__ASSEMBLY__ */
#endif /* __V850_IRQ_H__ */

21
include/linux/interrupt.h
View File

@ -7,32 +7,13 @@
#include <linux/bitops.h>
#include <linux/preempt.h>
#include <linux/cpumask.h>
#include <linux/irqreturn.h>
#include <linux/hardirq.h>
#include <linux/sched.h>
#include <asm/atomic.h>
#include <asm/ptrace.h>
#include <asm/system.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)
*/
typedef int irqreturn_t;
#define IRQ_NONE (0)
#define IRQ_HANDLED (1)
#define IRQ_RETVAL(x) ((x) != 0)
struct irqaction {
irqreturn_t (*handler)(int, void *, struct pt_regs *);
unsigned long flags;

3
include/linux/irq.h
View File

@ -17,6 +17,7 @@
#include <linux/cache.h>
#include <linux/spinlock.h>
#include <linux/cpumask.h>
#include <linux/irqreturn.h>
#include <asm/irq.h>
#include <asm/ptrace.h>
@ -175,7 +176,7 @@ static inline void set_balance_irq_affinity(unsigned int irq, cpumask_t mask)
extern int no_irq_affinity;
extern int noirqdebug_setup(char *str);
extern fastcall int handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
extern fastcall irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
struct irqaction *action);
extern fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs);
extern void note_interrupt(unsigned int irq, irq_desc_t *desc,

25
include/linux/irqreturn.h Normal file
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@ -0,0 +1,25 @@
/* 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)
*/
typedef int irqreturn_t;
#define IRQ_NONE (0)
#define IRQ_HANDLED (1)
#define IRQ_RETVAL(x) ((x) != 0)
#endif

5
kernel/irq/handle.c
View File

@ -76,10 +76,11 @@ irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs)
/*
* Have got an event to handle:
*/
fastcall int handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
fastcall irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
struct irqaction *action)
{
int ret, retval = 0, status = 0;
irqreturn_t ret, retval = IRQ_NONE;
unsigned int status = 0;
if (!(action->flags & SA_INTERRUPT))
local_irq_enable();