On 24/04/18 13:51, Ido Schimmel wrote:
> On Tue, Apr 24, 2018 at 12:51:39PM +0100, Colin King wrote:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> The check on bridge_port->bridge_device->multicast_enable is performed
>> twice in two nested if statements. I can't see any reason for this, the
>> second check is redundant and can be removed.
>>
>> Detected by cppcheck:
>> drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:1722]:
>> (warning) Identical inner 'if' condition is always true.
>>
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>> ---
>> drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 9 +++------
>> 1 file changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
>> index c11c9a635866..989ed19e25c9 100644
>> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
>> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
>> @@ -1719,12 +1719,9 @@ __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
>> int err;
>>
>> if (bridge_port->bridge_device->multicast_enabled) {
>> - if (bridge_port->bridge_device->multicast_enabled) {
>
> This looks like a copy-paste error. I believe the intention was to check
> '!bridge_port->mrouter' so that if port is an mrouter port packets
> hitting the MDB entry would still be sent to it even after it was
> removed from the MDB entry ports list.
Ah, that makes a lot more sense.
>
> I will send a patch later this week after I run it by Nogah who worked
> on this part.
OK, thanks!
>
> Thanks for the patch.
>
>> - err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid,
>> - false);
>> - if (err)
>> - netdev_err(dev, "Unable to remove port from SMID\n");
>> - }
>> + err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
>> + if (err)
>> + netdev_err(dev, "Unable to remove port from SMID\n");
>> }
>>
>> err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
>> --
>> 2.17.0
>>
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