From: Jiaran Zhang zhangjiaran@huawei.com
mainline inclusion from mainline-master commit ed0e658c51aa category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Currently, the hclge_reset_prepare_general function uses the goto statement to jump upwards, which increases code complexity and makes the program structure difficult to understand. In addition, if reset_pending is set, retry_cnt cannot be increased. This may result in a failure to exit the retry or increase the number of retries.
Use the while statement instead to make the program easier to understand and solve the problem that the goto statement cannot be exited.
Signed-off-by: Jiaran Zhang zhangjiaran@huawei.com Signed-off-by: Guangbin Huang huangguangbin2@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Reviewed-by: Yongxin Li liyongxin1@huawei.com Signed-off-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- .../hisilicon/hns3/hns3pf/hclge_main.c | 32 ++++++++----------- .../hisilicon/hns3/hns3vf/hclgevf_main.c | 32 ++++++++----------- 2 files changed, 28 insertions(+), 36 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index ff5baeef5204..167391187ade 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -11589,24 +11589,20 @@ static void hclge_reset_prepare_general(struct hnae3_ae_dev *ae_dev, int retry_cnt = 0; int ret;
-retry: - down(&hdev->reset_sem); - set_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); - hdev->reset_type = rst_type; - ret = hclge_reset_prepare(hdev); - if (ret || hdev->reset_pending) { - dev_err(&hdev->pdev->dev, "fail to prepare to reset, ret=%d\n", - ret); - if (hdev->reset_pending || - retry_cnt++ < HCLGE_RESET_RETRY_CNT) { - dev_err(&hdev->pdev->dev, - "reset_pending:0x%lx, retry_cnt:%d\n", - hdev->reset_pending, retry_cnt); - clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); - up(&hdev->reset_sem); - msleep(HCLGE_RESET_RETRY_WAIT_MS); - goto retry; - } + while (retry_cnt++ < HCLGE_RESET_RETRY_CNT) { + down(&hdev->reset_sem); + set_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); + hdev->reset_type = rst_type; + ret = hclge_reset_prepare(hdev); + if (!ret && !hdev->reset_pending) + break; + + dev_err(&hdev->pdev->dev, + "failed to prepare to reset, ret=%d, reset_pending:0x%lx, retry_cnt:%d\n", + ret, hdev->reset_pending, retry_cnt); + clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); + up(&hdev->reset_sem); + msleep(HCLGE_RESET_RETRY_WAIT_MS); }
/* disable misc vector before reset done */ diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index d7a7c8240bb2..54ac7f21a9c6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -2166,24 +2166,20 @@ static void hclgevf_reset_prepare_general(struct hnae3_ae_dev *ae_dev, int retry_cnt = 0; int ret;
-retry: - down(&hdev->reset_sem); - set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); - hdev->reset_type = rst_type; - ret = hclgevf_reset_prepare(hdev); - if (ret) { - dev_err(&hdev->pdev->dev, "fail to prepare to reset, ret=%d\n", - ret); - if (hdev->reset_pending || - retry_cnt++ < HCLGEVF_RESET_RETRY_CNT) { - dev_err(&hdev->pdev->dev, - "reset_pending:0x%lx, retry_cnt:%d\n", - hdev->reset_pending, retry_cnt); - clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); - up(&hdev->reset_sem); - msleep(HCLGEVF_RESET_RETRY_WAIT_MS); - goto retry; - } + while (retry_cnt++ < HCLGEVF_RESET_RETRY_CNT) { + down(&hdev->reset_sem); + set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); + hdev->reset_type = rst_type; + ret = hclgevf_reset_prepare(hdev); + if (!ret && !hdev->reset_pending) + break; + + dev_err(&hdev->pdev->dev, + "failed to prepare to reset, ret=%d, reset_pending:0x%lx, retry_cnt:%d\n", + ret, hdev->reset_pending, retry_cnt); + clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); + up(&hdev->reset_sem); + msleep(HCLGEVF_RESET_RETRY_WAIT_MS); }
/* disable misc vector before reset done */