target/linux/generic/pending-6.1/728-net-phy-realtek-check-validity-of-10GbE-link-partner.patch

   1 From 929bb4d3cfbc7878326c0771a01a636d49c54b40 Mon Sep 17 00:00:00 2001
   2 From: Daniel Golle <daniel@makrotopia.org>
   3 Date: Sat, 22 Apr 2023 01:25:39 +0100
   4 Subject: [PATCH 3/3] net: phy: realtek: check validity of 10GbE link-partner
   5  advertisement
   6
   7 Only use link-partner advertisement bits for 10GbE modes if they are
   8 actually valid. Check LOCALOK and REMOTEOK bits and clear 10GbE modes
   9 unless both of them are set.
  10
  11 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  12 ---
  13  drivers/net/phy/realtek.c | 4 ++++
  14  1 file changed, 4 insertions(+)
  15
  16 --- a/drivers/net/phy/realtek.c
  17 +++ b/drivers/net/phy/realtek.c
  18 @@ -708,6 +708,10 @@ static int rtl822x_read_status(struct ph
  19                 if (lpadv < 0)
  20                         return lpadv;
  21
  22 +               if (!(lpadv & MDIO_AN_10GBT_STAT_REMOK) ||
  23 +                   !(lpadv & MDIO_AN_10GBT_STAT_LOCOK))
  24 +                       lpadv = 0;
  25 +
  26                 mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, lpadv);
  27         }
  28