ixgbevf: Change ixgbe_read_reg to ixgbevf_read_reg

Change the ixgbe_read_reg function name to ixgbevf_read_reg to
avoid a namespace clash with the ixgbe driver. This will allow
ixgbe to take its register read function out-of-line to reduce
memory footprint.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index b2d0023..1baecb6 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -540,10 +540,10 @@
 		return true;
 	}
 	for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {
-		before = ixgbe_read_reg(&adapter->hw, reg);
+		before = ixgbevf_read_reg(&adapter->hw, reg);
 		ixgbe_write_reg(&adapter->hw, reg,
 				register_test_patterns[pat] & write);
-		val = ixgbe_read_reg(&adapter->hw, reg);
+		val = ixgbevf_read_reg(&adapter->hw, reg);
 		if (val != (register_test_patterns[pat] & write & mask)) {
 			hw_dbg(&adapter->hw,
 			       "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
@@ -567,9 +567,9 @@
 		*data = 1;
 		return true;
 	}
-	before = ixgbe_read_reg(&adapter->hw, reg);
+	before = ixgbevf_read_reg(&adapter->hw, reg);
 	ixgbe_write_reg(&adapter->hw, reg, write & mask);
-	val = ixgbe_read_reg(&adapter->hw, reg);
+	val = ixgbevf_read_reg(&adapter->hw, reg);
 	if ((write & mask) != (val & mask)) {
 		pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
 		       reg, (val & mask), write & mask);