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[MIPS] Compile __do_IRQ() when really needed

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__do_IRQ() is needed only by irq handlers that can't use
default handlers defined in kernel/irq/chip.c.

For others platforms there's no need to compile this function
since it won't be used. For those platforms this patch defines
GENERIC_HARDIRQS_NO__DO_IRQ symbol which is used exactly for
this purpose.

Futhermore for platforms which do not use __do_IRQ(), end()
method which is part of the 'irq_chip' structure is not used.
This patch simply removes this method in this case.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Franck Bui-Huu
2006-12-01 18:22:27 +01:00
committed by Ralf Baechle
parent 1ccd1c1c35
commit e77c232cfc
23 changed files with 14 additions and 231 deletions
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10
arch/mips/kernel/irq_cpu.c
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@@ -50,12 +50,6 @@ static inline void mask_mips_irq(unsigned int irq)
irq_disable_hazard();
}
static void mips_cpu_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
unmask_mips_irq(irq);
}
static struct irq_chip mips_cpu_irq_controller = {
.typename = "MIPS",
.ack = mask_mips_irq,
@@ -63,7 +57,6 @@ static struct irq_chip mips_cpu_irq_controller = {
.mask_ack = mask_mips_irq,
.unmask = unmask_mips_irq,
.eoi = unmask_mips_irq,
.end = mips_cpu_irq_end,
};
/*
@@ -96,8 +89,6 @@ static void mips_mt_cpu_irq_ack(unsigned int irq)
mask_mips_mt_irq(irq);
}
#define mips_mt_cpu_irq_end mips_cpu_irq_end
static struct irq_chip mips_mt_cpu_irq_controller = {
.typename = "MIPS",
.startup = mips_mt_cpu_irq_startup,
@@ -106,7 +97,6 @@ static struct irq_chip mips_mt_cpu_irq_controller = {
.mask_ack = mips_mt_cpu_irq_ack,
.unmask = unmask_mips_mt_irq,
.eoi = unmask_mips_mt_irq,
.end = mips_mt_cpu_irq_end,
};
void __init mips_cpu_irq_init(int irq_base)