net: ethernet: Add helper to remove a supported link mode

Some MAC hardware cannot support a subset of link modes. e.g. often
1Gbps Full duplex is supported, but Half duplex is not. Add a helper
to remove such a link mode.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn
2018-09-12 01:53:14 +02:00
committed by David S. Miller
parent 04b7d41d80
commit 41124fa64d
9 changed files with 38 additions and 14 deletions

View File

@@ -1013,7 +1013,7 @@ static int lan743x_phy_open(struct lan743x_adapter *adapter)
goto return_error;
/* MAC doesn't support 1000T Half */
phydev->supported &= ~SUPPORTED_1000baseT_Half;
phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
/* support both flow controls */
phy->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX);