[PATCH] powerpc: remove NO_IRQ_IGNORE

[Stephen Rothwell]

Now that legacy iSeries is gone, this is no longer used.

Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
 arch/powerpc/include/asm/irq.h     |    6 ------
 arch/powerpc/include/asm/machdep.h |    4 +---
 arch/powerpc/kernel/irq.c          |    4 ++--
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index c0e1bc3..22064be 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -26,12 +26,6 @@ extern atomic_t ppc_n_lost_interrupts;
 /* This number is used when no interrupt has been assigned */
 #define NO_IRQ			(0)
 
-/* This is a special irq number to return from get_irq() to tell that
- * no interrupt happened _and_ ignore it (don't count it as bad). Some
- * platforms like iSeries rely on that.
- */
-#define NO_IRQ_IGNORE		((unsigned int)-1)
-
 /* Total number of virq in the platform */
 #define NR_IRQS		CONFIG_NR_IRQS
 
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index bf37931..42ce570 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -99,9 +99,7 @@ struct machdep_calls {
 
 	void		(*init_IRQ)(void);
 
-	/* Return an irq, or NO_IRQ to indicate there are none pending.
-	 * If for some reason there is no irq, but the interrupt
-	 * shouldn't be counted as spurious, return NO_IRQ_IGNORE. */
+	/* Return an irq, or NO_IRQ to indicate there are none pending. */
 	unsigned int	(*get_irq)(void);
 
 	/* PCI stuff */
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 45b367c..4ec471a 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -445,9 +445,9 @@ void do_IRQ(struct pt_regs *regs)
 	may_hard_irq_enable();
 
 	/* And finally process it */
-	if (irq != NO_IRQ && irq != NO_IRQ_IGNORE)
+	if (irq != NO_IRQ)
 		handle_one_irq(irq);
-	else if (irq != NO_IRQ_IGNORE)
+	else
 		__get_cpu_var(irq_stat).spurious_irqs++;
 
 	irq_exit();
-- 
1.7.9.1

-- 
Stephen Rothwell <sfr at canb.auug.org.au>
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