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Date:   Thu, 13 Oct 2022 20:58:57 +0200
From:   netdev@kapio-technology.com
To:     Ido Schimmel <idosch@nvidia.com>
Cc:     davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org,
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Subject: Re: [PATCH v7 net-next 3/9] net: switchdev: add support for
 offloading of the FDB locked flag
In-Reply-To: <Y0gbVoeV/e6wzlbM@shredder>
References: <20221009174052.1927483-1-netdev@kapio-technology.com>
 <20221009174052.1927483-4-netdev@kapio-technology.com>
 <Y0gbVoeV/e6wzlbM@shredder>
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On 2022-10-13 16:06, Ido Schimmel wrote:
>> diff --git a/net/dsa/port.c b/net/dsa/port.c
>> index e4a0513816bb..eab32b7a945a 100644
>> --- a/net/dsa/port.c
>> +++ b/net/dsa/port.c
>> @@ -304,7 +304,7 @@ static int dsa_port_inherit_brport_flags(struct 
>> dsa_port *dp,
>>  					 struct netlink_ext_ack *extack)
>>  {
>>  	const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
>> -				   BR_BCAST_FLOOD | BR_PORT_LOCKED;
>> +				   BR_BCAST_FLOOD;
> 
> Not sure how this is related to the patchset.
> 

In general it is needed as a fix because of the way learning with locked 
port is handled in the driver,
so as with MAB and also locked port in the future needing a non-zero 
Port Association Vector (PAV)
for refresh etc to work, inheritance of the locked port flag is a bad 
idea (say bug) and shouldn't have
been in the first place.