diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c
index f235c7ea42f0..4730863ece9a 100644
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -49,7 +49,7 @@ enum {
 	MTHCA_VENDOR_CLASS2 = 0xa
 };
 
-int mthca_update_rate(struct mthca_dev *dev, u8 port_num)
+static int mthca_update_rate(struct mthca_dev *dev, u8 port_num)
 {
 	struct ib_port_attr *tprops = NULL;
 	int                  ret;