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Subject[patch 02/37] h8300: Convert interrupt handling to flow handler
__do_IRQ is deprecated so h8300 needs to be converted to proper flow
handling. The irq chip is simple and does not required any
mask/ack/eoi functions, so we can use handle_simple_irq.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
---
arch/h8300/kernel/irq.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)

Index: linux-2.6/arch/h8300/kernel/irq.c
===================================================================
--- linux-2.6.orig/arch/h8300/kernel/irq.c
+++ linux-2.6/arch/h8300/kernel/irq.c
@@ -50,10 +50,6 @@ static void h8300_disable_irq(struct irq
IER_REGS &= ~(1 << (data->irq - EXT_IRQ0));
}

-static void h8300_end_irq(unsigned int irq)
-{
-}
-
static unsigned int h8300_startup_irq(struct irq_data *data)
{
if (is_ext_irq(data->irq))
@@ -77,7 +73,6 @@ struct irq_chip h8300irq_chip = {
.irq_shutdown = h8300_shutdown_irq,
.irq_enable = h8300_enable_irq,
.irq_disable = h8300_disable_irq,
- .end = h8300_end_irq,
};

#if defined(CONFIG_RAMKERNEL)
@@ -159,18 +154,14 @@ void __init init_IRQ(void)

setup_vector();

- for (c = 0; c < NR_IRQS; c++) {
- irq_desc[c].status = IRQ_DISABLED;
- irq_desc[c].action = NULL;
- irq_desc[c].depth = 1;
- irq_desc[c].chip = &h8300irq_chip;
- }
+ for (c = 0; c < NR_IRQS; c++)
+ set_irq_chip_and_handler(c, &h8300irq_chip, handle_simple_irq);
}

asmlinkage void do_IRQ(int irq)
{
irq_enter();
- __do_IRQ(irq);
+ generic_handle_irq(irq);
irq_exit();
}




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