mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-02-23 01:34:31 -05:00
11d06f0aae
Similar to the situation described for sja1105 in commit1f9fc48fd3("net: dsa: sja1105: fix reception from VLAN-unaware bridges"), the vsc73xx driver uses tag_8021q and doesn't need the ds->untag_bridge_pvid request. In fact, this option breaks packet reception. The ds->untag_bridge_pvid option strips VLANs from packets received on VLAN-unaware bridge ports. But those VLANs should already be stripped by tag_vsc73xx_8021q.c as part of vsc73xx_rcv() - they are not VLANs in VLAN-unaware mode, but DSA tags. Thus, dsa_software_vlan_untag() tries to untag a VLAN that doesn't exist, corrupting the packet. Fixes:93e4649efa("net: dsa: provide a software untagging function on RX for VLAN-aware bridges") Tested-by: Pawel Dembicki <paweldembicki@gmail.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patch.msgid.link/20241014153041.1110364-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>