From 929bb4d3cfbc7878326c0771a01a636d49c54b40 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sat, 22 Apr 2023 01:25:39 +0100 Subject: [PATCH 3/3] net: phy: realtek: check validity of 10GbE link-partner advertisement Only use link-partner advertisement bits for 10GbE modes if they are actually valid. Check LOCALOK and REMOTEOK bits and clear 10GbE modes unless both of them are set. Signed-off-by: Daniel Golle --- drivers/net/phy/realtek.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -708,6 +708,10 @@ static int rtl822x_read_status(struct ph if (lpadv < 0) return lpadv; + if (!(lpadv & MDIO_AN_10GBT_STAT_REMOK) || + !(lpadv & MDIO_AN_10GBT_STAT_LOCOK)) + lpadv = 0; + mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, lpadv); }