On Wed, Mar 02, 2022 at 10:40:20AM +0000, Svenning Sørensen wrote:
> Commit b3612ccdf284 ("net: dsa: microchip: implement multi-bridge support")
> plugged a packet leak between ports that were members of different bridges.
> Unfortunately, this broke another use case, namely that of more than two
> ports that are members of the same bridge.
>
> After that commit, when a port is added to a bridge, hardware bridging
> between other member ports of that bridge will be cleared, preventing
> packet exchange between them.
>
> Fix by ensuring that the Port VLAN Membership bitmap includes any existing
> ports in the bridge, not just the port being added.
>
> Upstream commit 3d00827a90db6f79abc7cdc553887f89a2e0a184, backported to 5.16.
>
> Fixes: b3612ccdf284 ("net: dsa: microchip: implement multi-bridge support")
> Signed-off-by: Svenning Sørensen <sss@xxxxxxxxxxx>
> Tested-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> ---
> drivers/net/dsa/microchip/ksz_common.c | 26 +++++++++++++++++++++++---
> 1 file changed, 23 insertions(+), 3 deletions(-)
Now queued up, thanks.
greg k-h
