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| author | Peng Li <lipeng321@huawei.com> | 2018-12-20 11:52:00 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-19 23:47:58 -0800 |
| commit | 1b7d7b0581173219b82abbd81c88cf8aa7d402c2 (patch) | |
| tree | f4efe8a72d8aac9200b766b02942f473a6cfb761 /drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c | |
| parent | a298797532d9dc244abf349d7c2ed063732c6ba3 (diff) | |
| download | linux-stable-1b7d7b0581173219b82abbd81c88cf8aa7d402c2.tar.gz linux-stable-1b7d7b0581173219b82abbd81c88cf8aa7d402c2.tar.bz2 linux-stable-1b7d7b0581173219b82abbd81c88cf8aa7d402c2.zip | |
net: hns3: fix a bug caused by udelay
udelay() in driver may always occupancy processor. If there is only
one cpu in system, the VF driver may initialize fail when insmod
PF and VF driver in the same system. This patch use msleep() to free
cpu when VF wait PF message.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c index ef9c8e6eca28..84653f58b2d1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c @@ -26,7 +26,7 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1, u8 *resp_data, u16 resp_len) { #define HCLGEVF_MAX_TRY_TIMES 500 -#define HCLGEVF_SLEEP_USCOEND 1000 +#define HCLGEVF_SLEEP_USECOND 1000 struct hclgevf_mbx_resp_status *mbx_resp; u16 r_code0, r_code1; int i = 0; @@ -43,7 +43,7 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1, if (test_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state)) return -EIO; - udelay(HCLGEVF_SLEEP_USCOEND); + usleep_range(HCLGEVF_SLEEP_USECOND, HCLGEVF_SLEEP_USECOND * 2); i++; } |