[dpdk-dev] [PATCH v3] net/hns3: fix parse link fails code fail

["Min Hu (Connor)" <humin29@huawei.com>]

From: Chengwen Feng <fengchengwen@huawei.com>

The link fails code should be parsed using the structure
hns3_mbx_vf_to_pf_cmd, else it will parse fail.

Fixes: 109e4dd1bd7a ("net/hns3: get link state change through mailbox")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
v3:
* get the parameter as 'struct hns3_mbx_vf_to_pf_cmd' at first place.

v2:
* kept original API interface.
---
 drivers/net/hns3/hns3_mbx.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/hns3/hns3_mbx.c b/drivers/net/hns3/hns3_mbx.c
index ba04ac9..31ab130 100644
--- a/drivers/net/hns3/hns3_mbx.c
+++ b/drivers/net/hns3/hns3_mbx.c
@@ -347,7 +347,7 @@ hns3_link_fail_parse(struct hns3_hw *hw, uint8_t link_fail_code)
 
 static void
 hns3pf_handle_link_change_event(struct hns3_hw *hw,
-			      struct hns3_mbx_pf_to_vf_cmd *req)
+				struct hns3_mbx_vf_to_pf_cmd *req)
 {
 #define LINK_STATUS_OFFSET     1
 #define LINK_FAIL_CODE_OFFSET  2
@@ -513,7 +513,14 @@ hns3_dev_handle_mbx_msg(struct hns3_hw *hw)
 			hns3_handle_asserting_reset(hw, req);
 			break;
 		case HNS3_MBX_PUSH_LINK_STATUS:
-			hns3pf_handle_link_change_event(hw, req);
+			/*
+			 * This message is reported by the firmware and is
+			 * reported in 'struct hns3_mbx_vf_to_pf_cmd' format.
+			 * Therefore, we should cast the req variable to
+			 * 'struct hns3_mbx_vf_to_pf_cmd' and then process it.
+			 */
+			hns3pf_handle_link_change_event(hw,
+				(struct hns3_mbx_vf_to_pf_cmd *)req);
 			break;
 		case HNS3_MBX_PUSH_VLAN_INFO:
 			/*
-- 
2.7.4