6.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Golle <daniel@xxxxxxxxxxxxxx>
[ Upstream commit 34d5a86ff7bbe225fba3ad91f9b4dc85fb408e18 ]
Only read 1000Base-T link partner advertisement if autonegotiation has
completed and otherwise 1000Base-T link partner advertisement bits.
This fixes bogus 1000Base-T link partner advertisement after link goes
down (eg. by disconnecting the wire).
Fixes: 5cb409b3960e ("net: phy: realtek: clear 1000Base-T link partner advertisement")
Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@xxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/phy/realtek.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index f65d7f1f348e7..26b324ab0f90f 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -1023,23 +1023,20 @@ static int rtl822x_c45_read_status(struct phy_device *phydev)
{
int ret, val;
- ret = genphy_c45_read_status(phydev);
- if (ret < 0)
- return ret;
-
- if (phydev->autoneg == AUTONEG_DISABLE ||
- !genphy_c45_aneg_done(phydev))
- mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, 0);
-
/* Vendor register as C45 has no standardized support for 1000BaseT */
- if (phydev->autoneg == AUTONEG_ENABLE) {
+ if (phydev->autoneg == AUTONEG_ENABLE && genphy_c45_aneg_done(phydev)) {
val = phy_read_mmd(phydev, MDIO_MMD_VEND2,
RTL822X_VND2_GANLPAR);
if (val < 0)
return val;
-
- mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, val);
+ } else {
+ val = 0;
}
+ mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, val);
+
+ ret = genphy_c45_read_status(phydev);
+ if (ret < 0)
+ return ret;
if (!phydev->link)
return 0;
--
2.39.5
