e1000e: rename a few functions

Several minor cosmetic function renames.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index b941a6b..5a89dff 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -271,7 +271,7 @@
 	enum e1000_mac_type	mac;
 	unsigned int		flags;
 	u32			pba;
-	s32			(*get_invariants)(struct e1000_adapter *);
+	s32			(*get_variants)(struct e1000_adapter *);
 	struct e1000_mac_operations *mac_ops;
 	struct e1000_phy_operations *phy_ops;
 	struct e1000_nvm_operations *nvm_ops;
@@ -357,7 +357,7 @@
 extern struct e1000_info e1000_ich9_info;
 extern struct e1000_info e1000_es2_info;
 
-extern s32 e1000e_read_part_num(struct e1000_hw *hw, u32 *part_num);
+extern s32 e1000e_read_pba_num(struct e1000_hw *hw, u32 *pba_num);
 
 extern s32  e1000e_commit_phy(struct e1000_hw *hw);