diff options
| author |   Jiaran Zhang <zhangjiaran@huawei.com> | 2021-05-18 19:36:00 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-05-18 13:41:03 -0700 |
| commit | a710b9ffbebaf713f7dbd4dbd9524907e5d66f33 (patch) | |
| tree | 5ec82dc9c45d92dab5648a04daf3279b6b7b8cb7 | |
| parent | net: lan78xx: advertise tx software timestamping support (diff) | |
| download | wireguard-linux-a710b9ffbebaf713f7dbd4dbd9524907e5d66f33.tar.xz wireguard-linux-a710b9ffbebaf713f7dbd4dbd9524907e5d66f33.zip | |
net: hns3: fix incorrect resp_msg issue
In hclge_mbx_handler(), if there are two consecutive mailbox
messages that requires resp_msg, the resp_msg is not cleared
after processing the first message, which will cause the resp_msg
data of second message incorrect.
Fix it by clearing the resp_msg before processing every mailbox
message.
Fixes: bb5790b71bad ("net: hns3: refactor mailbox response scheme between PF and VF")
Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c index 8e5f9dc8791d..f1c9f4ada348 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c @@ -710,7 +710,6 @@ void hclge_mbx_handler(struct hclge_dev *hdev) unsigned int flag; int ret = 0; - memset(&resp_msg, 0, sizeof(resp_msg)); /* handle all the mailbox requests in the queue */ while (!hclge_cmd_crq_empty(&hdev->hw)) { if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) { @@ -738,6 +737,9 @@ void hclge_mbx_handler(struct hclge_dev *hdev) trace_hclge_pf_mbx_get(hdev, req); + /* clear the resp_msg before processing every mailbox message */ + memset(&resp_msg, 0, sizeof(resp_msg)); + switch (req->msg.code) { case HCLGE_MBX_MAP_RING_TO_VECTOR: ret = hclge_map_unmap_ring_to_vf_vector(vport, true, |