Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...

[karo-tx-linux.git] / drivers / net / ethernet / intel / igb / e1000_82575.c

diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index b64542acfa3449bda2ee5c793d83de6cda1f097c..12b1d84808084269971e5f83f55bd8b0f3fb8240 100644 (file)
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -1818,27 +1818,32 @@ out:
  **/
 void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf)
 {
-       u32 dtxswc;
+       u32 reg_val, reg_offset;
 
        switch (hw->mac.type) {
        case e1000_82576:
+               reg_offset = E1000_DTXSWC;
+               break;
        case e1000_i350:
-               dtxswc = rd32(E1000_DTXSWC);
-               if (enable) {
-                       dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK |
-                                  E1000_DTXSWC_VLAN_SPOOF_MASK);
-                       /* The PF can spoof - it has to in order to
-                        * support emulation mode NICs */
-                       dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
-               } else {
-                       dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
-                                   E1000_DTXSWC_VLAN_SPOOF_MASK);
-               }
-               wr32(E1000_DTXSWC, dtxswc);
+               reg_offset = E1000_TXSWC;
                break;
        default:
-               break;
+               return;
+       }
+
+       reg_val = rd32(reg_offset);
+       if (enable) {
+               reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK |
+                            E1000_DTXSWC_VLAN_SPOOF_MASK);
+               /* The PF can spoof - it has to in order to
+                * support emulation mode NICs
+                */
+               reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
+       } else {
+               reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
+                            E1000_DTXSWC_VLAN_SPOOF_MASK);
        }
+       wr32(reg_offset, reg_val);
 }
 
 /**