diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 58e09b2..71965c6 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -64,7 +64,7 @@
 	struct fsl_msi *msi_data = h->host_data;
 	struct irq_chip *chip = &fsl_msi_chip;
 
-	irq_to_desc(virq)->status |= IRQ_TYPE_EDGE_FALLING;
+	irq_set_status_flags(virq, IRQ_TYPE_EDGE_FALLING);
 
 	set_irq_chip_data(virq, msi_data);
 	set_irq_chip_and_handler(virq, chip, handle_edge_irq);