From: Vladimir Oltean <vladimir.oltean@nxp.com>
To: stable@vger.kernel.org, Sasha Levin <sashal@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>
Subject: [PATCH stable-5.15.y 0/2] Fix PTP received on wrong port with bridged SJA1105 DSA
Date: Fri, 31 May 2024 19:50:14 +0300 [thread overview]
Message-ID: <20240531165016.3021154-1-vladimir.oltean@nxp.com> (raw)
It has been brought to my attention that what had been fixed 1 year ago
here for kernels 5.18 and later:
https://lore.kernel.org/netdev/20230626155112.3155993-1-vladimir.oltean@nxp.com/
is still broken on linux-5.15.y. Short summary: PTP boundary clock is
broken for ports under a VLAN-aware bridge.
The reason is that the Fixes: tags in those patches were wrong. The
issue originated from earlier, but the changes from 5.18 (blamed there),
aka DSA FDB isolation, masked that.
A straightforward cherry-pick was not possible, due to the conflict with
the aforementioned DSA FDB isolation work from 5.18. So I redid patch
2/2 and marked what I had to adapt.
Tested on the NXP LS1021A-TSN board.
Vladimir Oltean (2):
net: dsa: sja1105: always enable the INCL_SRCPT option
net: dsa: tag_sja1105: always prefer source port information from
INCL_SRCPT
drivers/net/dsa/sja1105/sja1105_main.c | 9 ++-----
net/dsa/tag_sja1105.c | 34 ++++++++++++++++++++------
2 files changed, 28 insertions(+), 15 deletions(-)
---
I'm sorry for the people who will want to backport DSA FDB isolation to
linux-5.15.y :(
--
2.34.1
next reply other threads:[~2024-05-31 16:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-31 16:50 Vladimir Oltean [this message]
2024-05-31 16:50 ` [PATCH stable-5.15.y 1/2] net: dsa: sja1105: always enable the INCL_SRCPT option Vladimir Oltean
2024-05-31 16:50 ` [PATCH stable-5.15.y 2/2] net: dsa: tag_sja1105: always prefer source port information from INCL_SRCPT Vladimir Oltean
2024-06-12 13:58 ` [PATCH stable-5.15.y 0/2] Fix PTP received on wrong port with bridged SJA1105 DSA Greg Kroah-Hartman
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