tg3: simplify tg3_phy_autoneg_cfg

JIRA: https://issues.redhat.com/browse/RHEL-52671
JIRA: https://issues.redhat.com/browse/RHEL-52757

commit ebb0346
Author: Heiner Kallweit <hkallweit1@gmail.com>
Date:   Sun Feb 18 19:04:42 2024 +0100

    tg3: simplify tg3_phy_autoneg_cfg

    Make use of ethtool_adv_to_mmd_eee_adv_t() to simplify the code.

    Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
    Reviewed-by: Simon Horman <horms@kernel.org>
    Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
    Reviewed-by: Andrew Lunn <andrew@lunn.ch>
    Reviewed-by: Michael Chan <michael.chan@broadcom.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>

Author: michich

drivers/net/ethernet/broadcom/tg3.c

@@ -4354,21 +4354,12 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
 	if (!err) {
 		u32 err2;
 
-		val = 0;
-		/* Advertise 100-BaseTX EEE ability */
-		if (advertise & ADVERTISED_100baseT_Full)
-			val |= MDIO_AN_EEE_ADV_100TX;
-		/* Advertise 1000-BaseT EEE ability */
-		if (advertise & ADVERTISED_1000baseT_Full)
-			val |= MDIO_AN_EEE_ADV_1000T;
-
-		if (!tp->eee.eee_enabled) {
+		if (!tp->eee.eee_enabled)
 			val = 0;
-			linkmode_zero(tp->eee.advertised);
-		} else {
-			mii_eee_cap1_mod_linkmode_t(tp->eee.advertised, val);
-		}
+		else
+			val = ethtool_adv_to_mmd_eee_adv_t(advertise);
 
+		mii_eee_cap1_mod_linkmode_t(tp->eee.advertised, val);
 		err = tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
 		if (err)
 			val = 0;