[Patch v2 3/3] net/netvsc: log error on failure to switch data path

[longli]

From: Long Li <lon...@microsoft.com>

There is no recovery code path if netvsc failed to switch data path.

Log an error in this case for troubleshooting.

Signed-off-by: Long Li <lon...@microsoft.com>
---
 drivers/net/netvsc/hn_vf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/netvsc/hn_vf.c b/drivers/net/netvsc/hn_vf.c
index 5d8058774d..4ff766ec8b 100644
--- a/drivers/net/netvsc/hn_vf.c
+++ b/drivers/net/netvsc/hn_vf.c
@@ -316,8 +316,9 @@ static void hn_vf_remove(struct hn_data *hv)
        } else {
                /* Stop incoming packets from arriving on VF */
                ret = hn_nvs_set_datapath(hv, NVS_DATAPATH_SYNTHETIC);
-               if (ret == 0)
-                       hv->vf_ctx.vf_vsc_switched = false;
+               if (ret)
+                       PMD_DRV_LOG(ERR, "Failed to switch to synthetic");
+               hv->vf_ctx.vf_vsc_switched = false;
        }
        rte_rwlock_write_unlock(&hv->vf_lock);
 }
-- 
2.34.1