diff options
| author | liuzhongzhu <liuzhongzhu@huawei.com> | 2019-02-02 17:39:36 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-02 19:24:09 +0300 |
| commit | 6104ca87e12a5119d3e53e926bb6fe468bb328e2 (patch) | |
| tree | e076b6565e98e236a78be4564193df305ad0dcf3 /drivers | |
| parent | 77af09c6780b1394a1e888a6862d49cadc0247fa (diff) | |
| download | linux-6104ca87e12a5119d3e53e926bb6fe468bb328e2.tar.xz | |
net: hns3: modify the upper limit judgment condition
In order to prevent the variable anomaly from being larger than desc_num,
the upper limit judgment condition becomes >=.
Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c index 57c50b947857..1dddfcba41a9 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c @@ -197,7 +197,7 @@ static int hclge_cmd_check_retval(struct hclge_hw *hw, struct hclge_desc *desc, for (handle = 0; handle < num; handle++) { desc[handle] = hw->cmq.csq.desc[ntc]; ntc++; - if (ntc == hw->cmq.csq.desc_num) + if (ntc >= hw->cmq.csq.desc_num) ntc = 0; } if (likely(!hclge_is_special_opcode(opcode))) @@ -254,7 +254,7 @@ int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num) desc_to_use = &hw->cmq.csq.desc[hw->cmq.csq.next_to_use]; *desc_to_use = desc[handle]; (hw->cmq.csq.next_to_use)++; - if (hw->cmq.csq.next_to_use == hw->cmq.csq.desc_num) + if (hw->cmq.csq.next_to_use >= hw->cmq.csq.desc_num) hw->cmq.csq.next_to_use = 0; handle++; } |