sfc: Fix reading non-legacy supported link modes

commit 041c614 upstream.

Everything except the first 32 bits was lost when the pause flags were
added. This makes the 50000baseCR2 mode flag (bit 34) not appear.

I have tested this with a 10G card (SFN5122F-R7) by modifying it to
return a non-legacy link mode (10000baseCR).

Signed-off-by: Erik Ekman <erik@kryo.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/net/ethernet/sfc/ethtool_common.c

@@ -563,20 +563,14 @@ int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_link_state *link_state = &efx->link_state;
-	u32 supported;
 
 	mutex_lock(&efx->mac_lock);
 	efx_mcdi_phy_get_link_ksettings(efx, cmd);
 	mutex_unlock(&efx->mac_lock);
 
 	/* Both MACs support pause frames (bidirectional and respond-only) */
-	ethtool_convert_link_mode_to_legacy_u32(&supported,
-						cmd->link_modes.supported);
-
-	supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
-
-	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
-						supported);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
 
 	if (LOOPBACK_INTERNAL(efx)) {
 		cmd->base.speed = link_state->speed;