@@ -4572,6 +4572,7 @@ static void ixgbe_up_complete(struct ixgbe_adapter *adapter)
if (hw->mac.ops.enable_tx_laser)
hw->mac.ops.enable_tx_laser(hw);
+ smp_mb__before_clear_bit();
clear_bit(__IXGBE_DOWN, &adapter->state);
ixgbe_napi_enable_all(adapter);
@@ -4783,7 +4784,8 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
int i;
/* signal that we are down to the interrupt handler */
- set_bit(__IXGBE_DOWN, &adapter->state);
+ if (test_and_set_bit(__IXGBE_DOWN, &adapter->state))
+ return; /* do nothing if already down */
/* disable receives */
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);