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-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 940d9244df62..a2cba53c31be 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1620,6 +1620,7 @@ static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
spin_unlock_bh(&adapter->mbx_lock);
+ smp_mb__before_clear_bit();
clear_bit(__IXGBEVF_DOWN, &adapter->state);
ixgbevf_napi_enable_all(adapter);
@@ -1744,7 +1745,8 @@ void ixgbevf_down(struct ixgbevf_adapter *adapter)
int i;
/* signal that we are down to the interrupt handler */
- set_bit(__IXGBEVF_DOWN, &adapter->state);
+ if (test_and_set_bit(__IXGBEVF_DOWN, &adapter->state))
+ return; /* do nothing if already down */
/* disable all enabled rx queues */
for (i = 0; i < adapter->num_rx_queues; i++)