diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 31102170c7a0bf07f4d8da0a6b26ea02e18b521b..5b5880c0ae1916d14c1ce997b8be9d3c2a9d3798 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -138,7 +138,7 @@ static void at91_stop_hc(struct platform_device *pdev)
 
 static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
 
-struct regmap *at91_dt_syscon_sfr(void)
+static struct regmap *at91_dt_syscon_sfr(void)
 {
 	struct regmap *regmap;