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From: Vivien Didelot <vivien.didelot@gmail.com>
To: Vladimir Oltean <olteanv@gmail.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
	f.fainelli@gmail.com, andrew@lunn.ch
Subject: Re: [PATCH net-next 2/6] net: dsa: do not skip -EOPNOTSUPP in dsa_port_vid_add
Date: Thu, 22 Aug 2019 19:43:04 -0400	[thread overview]
Message-ID: <20190822194304.GB30912@t480s.localdomain> (raw)
In-Reply-To: <f179fa10-3123-d055-1c67-0d24adf3cb08@gmail.com>

Hi Vladimir,

On Fri, 23 Aug 2019 01:06:58 +0300, Vladimir Oltean <olteanv@gmail.com> wrote:
> Hi Vivien,
> 
> On 8/22/19 11:13 PM, Vivien Didelot wrote:
> > Currently dsa_port_vid_add returns 0 if the switch returns -EOPNOTSUPP.
> > 
> > This function is used in the tag_8021q.c code to offload the PVID of
> > ports, which would simply not work if .port_vlan_add is not supported
> > by the underlying switch.
> > 
> > Do not skip -EOPNOTSUPP in dsa_port_vid_add but only when necessary,
> > that is to say in dsa_slave_vlan_rx_add_vid.
> > 
> 
> Do you know why Florian suppressed -EOPNOTSUPP in 061f6a505ac3 ("net: 
> dsa: Add ndo_vlan_rx_{add, kill}_vid implementation")?
> I forced a return value of -EOPNOTSUPP here and when I create a VLAN 
> sub-interface nothing breaks, it just says:
> RTNETLINK answers: Operation not supported
> which IMO is expected.

I do not know what you mean. This patch does not change the behavior of
dsa_slave_vlan_rx_add_vid, which returns 0 if -EOPNOTSUPP is caught.


Thanks,

	Vivien

  reply	other threads:[~2019-08-22 23:43 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-22 20:13 [PATCH net-next 0/6] net: dsa: explicit programmation of VLAN on CPU ports Vivien Didelot
2019-08-22 20:13 ` [PATCH net-next 1/6] net: dsa: remove bitmap operations Vivien Didelot
2019-08-22 20:13 ` [PATCH net-next 2/6] net: dsa: do not skip -EOPNOTSUPP in dsa_port_vid_add Vivien Didelot
2019-08-22 22:06   ` Vladimir Oltean
2019-08-22 23:43     ` Vivien Didelot [this message]
2019-08-22 23:44       ` Vladimir Oltean
2019-08-23 16:23         ` Florian Fainelli
2019-08-23 16:32           ` Vladimir Oltean
2019-08-23 16:49             ` Florian Fainelli
2019-08-22 20:13 ` [PATCH net-next 3/6] net: dsa: add slave VLAN helpers Vivien Didelot
2019-08-22 20:13 ` [PATCH net-next 4/6] net: dsa: check bridge VLAN in slave operations Vivien Didelot
2019-08-22 20:13 ` [PATCH net-next 5/6] net: dsa: program VLAN on CPU port from slave Vivien Didelot
2019-08-23 15:44   ` Vladimir Oltean
2019-08-22 20:13 ` [PATCH net-next 6/6] net: dsa: clear VLAN flags for CPU port Vivien Didelot
2019-08-22 23:51   ` Vladimir Oltean
2019-08-23 17:00     ` Florian Fainelli
2019-08-24 19:53       ` Vladimir Oltean
2019-08-25 17:28         ` Vivien Didelot

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