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@secomea.com Tested-by: Oleksij Rempel o.rempel@pengutronix.de Signed-off-by: David S. Miller davem@davemloft.net
drivers/net/dsa/microchip/ksz_common.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-)
Now queued up, thanks.
greg k-h