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Weihang Li 2253db16f8 net: hns3: code optimizaition of hclge_handle_hw_ras_error()
This patch optimizes hclge_handle_hw_ras_error() to make the code logic
clearer.
1. If there was no NIC or Roce RAS when we read
   HCLGE_RAS_PF_OTHER_INT_STS_REG, we return directly.
2. Because NIC and Roce RAS may occurs at the same time, so we should
   check value of revision at first before we handle Roce RAS instead
   of only checking it in branch of no NIC RAS is detected.
3. Check HCLGE_STATE_RST_HANDLING each time before we want to return
   PCI_ERS_RESULT_NEED_RESET.
4. Remove checking of HCLGE_RAS_REG_NFE_MASK and
   HCLGE_RAS_REG_ROCEE_ERR_MASK because if hw_err_reset_req is not
   zero, it proves that we have set it in handling of NIC or Roce RAS.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-26 11:59:02 -04:00
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