[PATCH 1/1] ixgbevf: avoid checking hang when performing hardware reset

[zyjzyj2000]

From: Zhu Yanjun <zyjzyj2...@gmail.com>

When performing hardware reset, it is not necessary to check hang.
Or else, the call trace will appear.

Signed-off-by: Zhu Yanjun <zyjzyj2...@gmail.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c 
b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index acc2401..d563d24 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -2792,9 +2792,14 @@ static void ixgbevf_reset_subtask(struct ixgbevf_adapter 
*adapter)
 static void ixgbevf_check_hang_subtask(struct ixgbevf_adapter *adapter)
 {
        struct ixgbe_hw *hw = &adapter->hw;
+       struct ixgbe_mbx_info *mbx = &hw->mbx;
        u32 eics = 0;
        int i;
 
+       /* When performing hardware reset, unnecessary to check hang. */
+       if (mbx->ops.check_for_rst(hw))
+               return;
+
        /* If we're down or resetting, just bail */
        if (test_bit(__IXGBEVF_DOWN, &adapter->state) ||
            test_bit(__IXGBEVF_RESETTING, &adapter->state))
-- 
2.7.4