[PATCH] irqchip/loongson-eiointc: Fix a build warning

[Huacai Chen]

Make acpi_get_vec_parent() be a static function, to avoid:
drivers/irqchip/irq-loongson-eiointc.c:289:20: warning: no previous prototype for 'acpi_get_vec_parent'

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
---
 drivers/irqchip/irq-loongson-eiointc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c
index 317467857478..bffb7b3128e8 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -290,7 +290,7 @@ static void acpi_set_vec_parent(int node, struct irq_domain *parent, struct acpi
 	}
 }
 
-struct irq_domain *acpi_get_vec_parent(int node, struct acpi_vector_group *vec_group)
+static struct irq_domain *acpi_get_vec_parent(int node, struct acpi_vector_group *vec_group)
 {
 	int i;
 
-- 
2.31.1