linux-stable/net/dsa
Vladimir Oltean 9f5548e421 net: dsa: tag_sja1105: fix MAC DA patching from meta frames
[ Upstream commit 1dcf6efd5f ]

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>
2023-07-27 08:44:10 +02:00
..
Kconfig
Makefile
dsa.c
dsa2.c
dsa_priv.h
master.c
port.c
slave.c
switch.c
tag_8021q.c
tag_ar9331.c
tag_brcm.c
tag_dsa.c
tag_edsa.c
tag_gswip.c
tag_ksz.c
tag_lan9303.c
tag_mtk.c
tag_ocelot.c
tag_qca.c
tag_rtl4_a.c
tag_sja1105.c net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-07-27 08:44:10 +02:00
tag_trailer.c