net: hns3: fix a phy loopback fail issue

When phy driver does not implement the set_loopback interface, phy loopback test will return -EOPNOTSUPP, and the loopback test will fail. So when phy driver does not implement the set_loopback interface, don't do phy loopback test. Fixes: c9765a8 ("net: hns3: add phy selftest function") Signed-off-by: Yonglong Liu <[email protected]> Signed-off-by: Huazhong Tan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
berg · Jan 6, 2021 · f04bbcb · f04bbcb
1 parent 9f9d41f
commit f04bbcb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -752,7 +752,8 @@ static int hclge_get_sset_count(struct hnae3_handle *handle, int stringset)
 		handle->flags |= HNAE3_SUPPORT_SERDES_SERIAL_LOOPBACK;
 		handle->flags |= HNAE3_SUPPORT_SERDES_PARALLEL_LOOPBACK;
 
-		if (hdev->hw.mac.phydev) {
+		if (hdev->hw.mac.phydev && hdev->hw.mac.phydev->drv &&
+		    hdev->hw.mac.phydev->drv->set_loopback) {
 			count += 1;
 			handle->flags |= HNAE3_SUPPORT_PHY_LOOPBACK;
 		}