diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index 8cb8965..2daa288 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -140,7 +140,7 @@
 	imxpriv->no_device = true;
 }
 
-int ahci_imx_softreset(struct ata_link *link, unsigned int *class,
+static int ahci_imx_softreset(struct ata_link *link, unsigned int *class,
 		       unsigned long deadline)
 {
 	struct ata_port *ap = link->ap;