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Vladimir Oltean 6d93759a88 net: dsa: tag_sja1105: fix MAC DA patching from meta frames 
BugLink: https://bugs.launchpad.net/bugs/2034918

[ Upstream commit 1dcf6efd5f0c1f4496b3ef7ec5a7db104a53b38c ]

The SJA1105 manual says that at offset 4 into the meta frame payload we
have "MAC destination byte 2" and at offset 5 we have "MAC destination
byte 1". These are counted from the LSB, so byte 1 is h_dest[ETH_HLEN-2]
aka h_dest[4] and byte 2 is h_dest[ETH_HLEN-3] aka h_dest[3].

The sja1105_meta_unpack() function decodes these the other way around,
so a frame with MAC DA 01:80:c2:11:22:33 is received by the network
stack as having 01:80:c2:22:11:33.

Fixes: e53e18a6fe ("net: dsa: sja1105: Receive and decode meta frames")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
 		2023-10-02 12:12:08 +02:00
..
Kconfig
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Makefile
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dsa.c
…
dsa2.c
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dsa_priv.h
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master.c
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port.c
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slave.c
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switch.c
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tag_8021q.c
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tag_brcm.c
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tag_dsa.c
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tag_edsa.c
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tag_gswip.c
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tag_ksz.c
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tag_lan9303.c
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tag_mtk.c
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tag_qca.c
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tag_sja1105.c net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-10-02 12:12:08 +02:00
tag_trailer.c
…