irqchip/gic-v3: Fix 'broken_rdists' unused warning when !SMP and !ACPI

Compiling the GICv3 driver on arm32 with CONFIG_SMP disabled
(CONFIG_ACPI is not available) generates an unused variable warning for
'broken_rdists'. Add a __maybe_unused attribute to silence the compiler.

Fixes: d633da5d3ab1 ("irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs")
Cc: <stable@vger.kernel.org> # .x
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index cc81515c1413b957a32ccfbd9e1f16eacc26c767..18619d29b2ed14141a5eb92f5057d364cc43b8b1 100644 (file)
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -44,7 +44,7 @@
 
 #define GIC_IRQ_TYPE_PARTITION (GIC_IRQ_TYPE_LPI + 1)
 
-static struct cpumask broken_rdists __read_mostly;
+static struct cpumask broken_rdists __read_mostly __maybe_unused;
 
 struct redist_region {
        void __iomem            *redist_base;