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Message-ID: <alpine.DEB.2.02.1411061056540.24819@rocker1.rocker.net>
Date:	Thu, 6 Nov 2014 10:57:23 -0800 (PST)
From:	Scott Feldman <sfeldma@...il.com>
To:	Florian Fainelli <f.fainelli@...il.com>
cc:	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
	davem@...emloft.net, nhorman@...driver.com, andy@...yhouse.net,
	tgraf@...g.ch, dborkman@...hat.com, ogerlitz@...lanox.com,
	jesse@...ira.com, pshelar@...ira.com, azhou@...ira.com,
	ben@...adent.org.uk, stephen@...workplumber.org,
	jeffrey.t.kirsher@...el.com, vyasevic@...hat.com,
	xiyou.wangcong@...il.com, john.r.fastabend@...el.com,
	edumazet@...gle.com, jhs@...atatu.com, sfeldma@...il.com,
	roopa@...ulusnetworks.com, linville@...driver.com,
	jasowang@...hat.com, ebiederm@...ssion.com,
	nicolas.dichtel@...nd.com, ryazanov.s.a@...il.com,
	buytenh@...tstofly.org, aviadr@...lanox.com, nbd@...nwrt.org,
	alexei.starovoitov@...il.com, Neil.Jerram@...aswitch.com,
	ronye@...lanox.com, simon.horman@...ronome.com,
	alexander.h.duyck@...hat.com, john.ronciak@...el.com,
	mleitner@...hat.com, shrijeet@...il.com, gospo@...ulusnetworks.com,
	bcrl@...ck.org
Subject: Re: [patch net-next 07/10] bridge: call netdev_sw_port_stp_update
 when bridge port STP status changes



On Thu, 6 Nov 2014, Florian Fainelli wrote:

> On 11/06/2014 01:20 AM, Jiri Pirko wrote:
>> From: Scott Feldman <sfeldma@...il.com>
>>
>> To notify switch driver of change in STP state of bridge port, add new
>> .ndo op and provide swdev wrapper func to call ndo op. Use it in bridge
>> code then.
>>
>> Signed-off-by: Scott Feldman <sfeldma@...il.com>
>> Signed-off-by: Jiri Pirko <jiri@...nulli.us>
>> ---
>
> [snip]
>
>>  #endif /* _LINUX_SWITCHDEV_H_ */
>> diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
>> index 86c239b..13fecf1 100644
>> --- a/net/bridge/br_netlink.c
>> +++ b/net/bridge/br_netlink.c
>> @@ -17,6 +17,7 @@
>>  #include <net/net_namespace.h>
>>  #include <net/sock.h>
>>  #include <uapi/linux/if_bridge.h>
>> +#include <net/switchdev.h>
>>
>>  #include "br_private.h"
>>  #include "br_private_stp.h"
>> @@ -304,6 +305,7 @@ static int br_set_port_state(struct net_bridge_port *p, u8 state)
>>
>>  	br_set_state(p, state);
>>  	br_log_state(p);
>> +	netdev_sw_port_stp_update(p->dev, p->state);
>
> Is there a reason netdev_sw_port_stp_update() is not folded in
> br_set_state()? Are we missing calls to br_set_state() in some locations?

I put the netdev_sw call at the same level as br_log_state() and 
br_ifinfo_notify(), but now that you bring up the question, I agree it 
would be cleaner/safer if netdev_sw call was from br_set_state().

> --
> Florian
>
--
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