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net: hns3: fix a phy loopback fail issue

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[ Upstream commit f04bbcbf1e38d192e94bbfa126731a52332c40b1 ]

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: c9765a89d1 ("net: hns3: add phy selftest function")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yonglong Liu 2021-01-05 11:37:26 +08:00 • committed by Greg Kroah-Hartman
commit fa020a2889
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
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@ -746,7 +746,8 @@ 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;
}