ia64: Remove unused check_irq_used()

Just stumbled over it when staring into ia64 irq handling.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/20140507154336.566531793@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 0 insertions, 9 deletions

diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
index a681d02cb324..029bab36cd91 100644
--- a/arch/ia64/include/asm/hw_irq.h
+++ b/arch/ia64/include/asm/hw_irq.h
@@ -132,7 +132,6 @@ extern int reserve_irq_vector (int vector);
 extern void __setup_vector_irq(int cpu);
 extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
 extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action);
-extern int check_irq_used (int irq);
 extern void destroy_and_reserve_irq (unsigned int irq);
 
 #if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 0884f5ecbcc3..5774c3b65fe5 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -93,14 +93,6 @@ static int irq_status[NR_IRQS] = {
         [0 ... NR_IRQS -1] = IRQ_UNUSED
 };
 
-int check_irq_used(int irq)
-{
-        if (irq_status[irq] == IRQ_USED)
-                return 1;
-
-        return -1;
-}
-
 static inline int find_unassigned_irq(void)
 {
         int irq;