[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>

1 files changed, 1 insertions, 20 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9e0fefd7884a..70741e170114 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -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;