1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index a86c17548c1e..56b59e4a6871 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -1609,6 +1609,11 @@ void e1000e_reset_adaptive(struct e1000_hw *hw)
 {
         struct e1000_mac_info *mac = &hw->mac;
 
+        if (!mac->adaptive_ifs) {
+                e_dbg("Not in Adaptive IFS mode!\n");
+                goto out;
+        }
+
         mac->current_ifs_val = 0;
         mac->ifs_min_val = IFS_MIN;
         mac->ifs_max_val = IFS_MAX;
@@ -1617,6 +1622,8 @@ void e1000e_reset_adaptive(struct e1000_hw *hw)
 
         mac->in_ifs_mode = false;
         ew32(AIT, 0);
+out:
+        return;
 }
 
 /**
@@ -1630,6 +1637,11 @@ void e1000e_update_adaptive(struct e1000_hw *hw)
 {
         struct e1000_mac_info *mac = &hw->mac;
 
+        if (!mac->adaptive_ifs) {
+                e_dbg("Not in Adaptive IFS mode!\n");
+                goto out;
+        }
+
         if ((mac->collision_delta * mac->ifs_ratio) > mac->tx_packet_delta) {
                 if (mac->tx_packet_delta > MIN_NUM_XMITS) {
                         mac->in_ifs_mode = true;
@@ -1650,6 +1662,8 @@ void e1000e_update_adaptive(struct e1000_hw *hw)
                         ew32(AIT, 0);
                 }
         }
+out:
+        return;
 }
 
 /**