e1000: fix namespacecheck warnings

a couple of functions needed to be removed/declared static

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index 50114cd..8d7d87f 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -2190,7 +2190,7 @@
  * Checks for link up on the hardware.  If link is not up and we have
  * a signal, then we need to force link up.
  */
-s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
+static s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw)
 {
 	u32 rxcw;
 	u32 ctrl;