[PATCH] irqchip/loongson-eiointc: Use pa_to_nid() rather than hard-code

[Huacai Chen]

NODE_ADDRSPACE_SHIFT is 44 now but may be changed in future, so use
pa_to_nid() rather than hard-code.

Cc: stable@xxxxxxxxxxxxxxx
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 a9e8b481d31d..ba6e8480e383 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -454,7 +454,7 @@ static int __init pch_pic_parse_madt(union acpi_subtable_headers *header,
 					const unsigned long end)
 {
 	struct acpi_madt_bio_pic *pchpic_entry = (struct acpi_madt_bio_pic *)header;
-	unsigned int node = (pchpic_entry->address >> 44) & 0xf;
+	unsigned int node = pa_to_nid(pchpic_entry->address) & 0xf;
 	struct irq_domain *parent = acpi_get_vec_parent(node, pch_group);
 
 	if (parent)
-- 
2.52.0