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Subject[PATCH 1/3] IRQ: Typedef the IRQ flow handler function type
Date
From: David Howells <dhowells@redhat.com>

Typedef the IRQ flow handler function type.

Signed-Off-By: David Howells <dhowells@redhat.com>
---

include/linux/irq.h | 30 ++++++++++++------------------
kernel/irq/chip.c | 12 +++---------
2 files changed, 15 insertions(+), 27 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 48d3cb3..8e1e1d8 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -22,6 +22,12 @@ #include <linux/irqreturn.h>
#include <asm/irq.h>
#include <asm/ptrace.h>

+struct irq_desc;
+typedef void fastcall (*irq_flow_handler_t)(unsigned int irq,
+ struct irq_desc *desc,
+ struct pt_regs *regs);
+
+
/*
* IRQ line status.
*
@@ -139,9 +145,7 @@ #endif
* Pad this out to 32 bytes for cache and indexing reasons.
*/
struct irq_desc {
- void fastcall (*handle_irq)(unsigned int irq,
- struct irq_desc *desc,
- struct pt_regs *regs);
+ irq_flow_handler_t handle_irq;
struct irq_chip *chip;
void *handler_data;
void *chip_data;
@@ -312,9 +316,7 @@ handle_bad_irq(unsigned int irq, struct
* Get a descriptive string for the highlevel handler, for
* /proc/interrupts output:
*/
-extern const char *
-handle_irq_name(void fastcall (*handle)(unsigned int, struct irq_desc *,
- struct pt_regs *));
+extern const char *handle_irq_name(irq_flow_handler_t handle);

/*
* Monolithic do_IRQ implementation.
@@ -366,22 +368,15 @@ extern struct irq_chip dummy_irq_chip;

extern void
set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,
- void fastcall (*handle)(unsigned int,
- struct irq_desc *,
- struct pt_regs *));
+ irq_flow_handler_t handle);
extern void
-__set_irq_handler(unsigned int irq,
- void fastcall (*handle)(unsigned int, struct irq_desc *,
- struct pt_regs *),
- int is_chained);
+__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained);

/*
* Set a highlevel flow handler for a given IRQ:
*/
static inline void
-set_irq_handler(unsigned int irq,
- void fastcall (*handle)(unsigned int, struct irq_desc *,
- struct pt_regs *))
+set_irq_handler(unsigned int irq, irq_flow_handler_t handle)
{
__set_irq_handler(irq, handle, 0);
}
@@ -393,8 +388,7 @@ set_irq_handler(unsigned int irq,
*/
static inline void
set_irq_chained_handler(unsigned int irq,
- void fastcall (*handle)(unsigned int, struct irq_desc *,
- struct pt_regs *))
+ irq_flow_handler_t handle)
{
__set_irq_handler(irq, handle, 1);
}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 736cb0b..ca8a28d 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -442,10 +442,7 @@ handle_percpu_irq(unsigned int irq, stru
#endif /* CONFIG_SMP */

void
-__set_irq_handler(unsigned int irq,
- void fastcall (*handle)(unsigned int, irq_desc_t *,
- struct pt_regs *),
- int is_chained)
+__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained)
{
struct irq_desc *desc;
unsigned long flags;
@@ -498,9 +495,7 @@ __set_irq_handler(unsigned int irq,

void
set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,
- void fastcall (*handle)(unsigned int,
- struct irq_desc *,
- struct pt_regs *))
+ irq_flow_handler_t handle)
{
set_irq_chip(irq, chip);
__set_irq_handler(irq, handle, 0);
@@ -511,8 +506,7 @@ set_irq_chip_and_handler(unsigned int ir
* /proc/interrupts output:
*/
const char *
-handle_irq_name(void fastcall (*handle)(unsigned int, struct irq_desc *,
- struct pt_regs *))
+handle_irq_name(irq_flow_handler_t handle)
{
if (handle == handle_level_irq)
return "level ";
-
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