[PATCH V2] irqchip: aramda370-xp: move spinlock declaration into CONFIG_SMP section

[Vincent Donnefort]

From: Vincent Donnefort <vdonnefort@xxxxxxxxx>

Fix the following compilation warning:
  drivers/irqchip/irq-armada-370-xp.c:55:23: warning: 'irq_controller_lock' defined but not used [-Wunused-variable]

Signed-off-by: Vincent Donnefort <vdonnefort@xxxxxxxxx>

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index bb328a3..63aa29b 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -52,8 +52,6 @@
 #define IPI_DOORBELL_END                        (8)
 #define IPI_DOORBELL_MASK                       0xFF
 
-static DEFINE_RAW_SPINLOCK(irq_controller_lock);
-
 static void __iomem *per_cpu_int_base;
 static void __iomem *main_int_base;
 static struct irq_domain *armada_370_xp_mpic_domain;
@@ -88,6 +86,8 @@ static void armada_370_xp_irq_unmask(struct irq_data *d)
 }
 
 #ifdef CONFIG_SMP
+static DEFINE_RAW_SPINLOCK(irq_controller_lock);
+
 static int armada_xp_set_affinity(struct irq_data *d,
 				  const struct cpumask *mask_val, bool force)
 {
-- 
1.8.3.2

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