[RFC PATCH net 0/4] Clear rx-vlan-filter feature in DSA when necessary

[Vladimir Oltean <olteanv@gmail.com>]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

This is a proposal for an alternative solution to the problems presented
by Tobias here:
https://patchwork.kernel.org/project/netdevbpf/cover/20210308150405.3694678-1-tobias@waldekranz.com/

The key difference is that his patch series makes dsa_slave_vlan_rx_add_vid
accept -EOPNOTSUPP and silently transforms it into an error code of 0,
while my patch series avoids calling dsa_slave_vlan_rx_add_vid when it
is not needed.

Note that the series applies on top of this other bugfix:
https://patchwork.kernel.org/project/netdevbpf/patch/20210308135509.3040286-1-olteanv@gmail.com/

Vladimir Oltean (4):
  net: dsa: on 'bridge vlan add', check for 8021q uppers of all bridge
    ports
  net: dsa: prevent hardware forwarding between unbridged 8021q uppers
  net: dsa: don't advertise 'rx-vlan-filter' if VLAN filtering not
    global
  net: dsa: let drivers state that they need VLAN filtering while
    standalone

 drivers/net/dsa/hirschmann/hellcreek.c |   1 +
 include/net/dsa.h                      |   3 +
 net/dsa/dsa_priv.h                     |   8 +-
 net/dsa/port.c                         |  60 ++++++++++++++-
 net/dsa/slave.c                        | 100 ++++++++++++++++++++-----
 net/dsa/switch.c                       |  20 +++--
 6 files changed, 164 insertions(+), 28 deletions(-)

-- 
2.25.1