RDMA/nes: Make unnecessarily global nes_set_pau() static

Warned about by sparse.

Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Faisal Latif <Faisal.Latif@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c
index cd10968..8b4c2ff 100644
--- a/drivers/infiniband/hw/nes/nes_utils.c
+++ b/drivers/infiniband/hw/nes/nes_utils.c
@@ -56,7 +56,7 @@
 u32 mh_detected;
 u32 mh_pauses_sent;
 
-u32 nes_set_pau(struct nes_device *nesdev)
+static u32 nes_set_pau(struct nes_device *nesdev)
 {
 	u32 ret = 0;
 	u32 counter;