powerpc: Remove NO_IRQ_IGNORE

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

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

3 files changed, 3 insertions, 11 deletions

diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index fe0b09dceb7d..cf417e510736 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -27,12 +27,6 @@ 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 bf37931d1ad6..42ce570812c1 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 a3d128e94cff..46ce5f733511 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();