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Daniel Golle
96ff31b94a
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 <daniel@makrotopia.org>
30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From 7d719484930bc10c8472c0d43b94b68087541b24 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Sat, 22 Apr 2023 01:25:39 +0100
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Subject: [PATCH] net: phy: c45: check validity of 10GbE link-partner
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advertisement
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Only use link-partner advertisement bits for 10GbE modes if they are
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actually valid. Check LOCALOK and REMOTEOK bits and clear 10GbE modes
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unless both of them are set.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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--- a/include/linux/mdio.h
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+++ b/include/linux/mdio.h
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@@ -323,8 +323,14 @@ static inline u32 linkmode_adv_to_mii_10
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* to linkmode advertisement settings. Other bits in advertising aren't changed.
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*/
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static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
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- u32 lpa)
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+ u32 lpa_in)
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{
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+ u32 lpa = lpa_in;
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+
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+ if (!(lpa & MDIO_AN_10GBT_STAT_REMOK) ||
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+ !(lpa & MDIO_AN_10GBT_STAT_LOCOK))
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+ lpa = 0;
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+
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linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
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advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
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linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
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