net: mii: Report advertised link capabilities when autonegotiation is off

Unify the set of information returned by mii_ethtool_get_link_ksettings(),
mii_ethtool_gset() and phy_ethtool_ksettings_get(). Make the mii_*()
functions report advertised settings when autonegotiation if disabled.

Suggested-by: Andrew Lunn <[e-mail]>
Signed-off-by: Łukasz Stelmach <[e-mail]>
Reviewed-by: Andrew Lunn <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/mii.c

···
  		ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
 		stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
 	}
+
+	ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE);
+	if (mii->supports_gmii)
+		ecmd->advertising |=
+			mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
+
 	if (bmcr & BMCR_ANENABLE) {
 		ecmd->advertising |= ADVERTISED_Autoneg;
 		ecmd->autoneg = AUTONEG_ENABLE;
-
-		ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE);
-		if (mii->supports_gmii)
-			ecmd->advertising |=
-					mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
 
 		if (bmsr & BMSR_ANEGCOMPLETE) {
 			ecmd->lp_advertising = mii_get_an(mii, MII_LPA);
···
 		ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
 		stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
 	}
+
+	advertising |= mii_get_an(mii, MII_ADVERTISE);
+	if (mii->supports_gmii)
+		advertising |= mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
+
 	if (bmcr & BMCR_ANENABLE) {
 		advertising |= ADVERTISED_Autoneg;
 		cmd->base.autoneg = AUTONEG_ENABLE;
-
-		advertising |= mii_get_an(mii, MII_ADVERTISE);
-		if (mii->supports_gmii)
-			advertising |= mii_ctrl1000_to_ethtool_adv_t(ctrl1000);
 
 		if (bmsr & BMSR_ANEGCOMPLETE) {
 			lp_advertising = mii_get_an(mii, MII_LPA);