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From: Vlad Yasevich <vyasevich@gmail.com>
To: David Laight <David.Laight@ACULAB.COM>,
	'David Miller' <davem@davemloft.net>,
	"makita.toshiaki@lab.ntt.co.jp" <makita.toshiaki@lab.ntt.co.jp>
Cc: "stephen@networkplumber.org" <stephen@networkplumber.org>,
	"vyasevic@redhat.com" <vyasevic@redhat.com>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [Bridge] [PATCH v2 net-next] bridge: Fix incorrect judgment of promisc
Date: Fri, 06 Jun 2014 10:13:29 -0400	[thread overview]
Message-ID: <5391CC89.1030104@gmail.com> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D1725853E@AcuExch.aculab.com>

On 06/06/2014 04:48 AM, David Laight wrote:
> From: David Miller [mailto:davem@davemloft.net]
>>> br_manage_promisc() incorrectly expects br_auto_port() to return only 0
>>> or 1, while it actually returns flags, i.e., a subset of BR_AUTO_MASK.
>>>
>>> Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
>>
>> I'm applying this as-is for now, even though I saw the other
>> suggestions in this thread (which BTW didn't get picked up by
>> patchwork, maybe some of you dropped the Message-Id in your replies by
>> accident).
> 
> I don't have a problem with that.
> The condition looks odd, but it is enabling promiscuous mode
> if any other ports are in 'auto' mode.

No, the condition is correct and explicit.  The cases are:
  0 auto ports == all ports are statically configured and non-promisc.
  1 auto port == only this port can be non-promisc.  all others promisc.
  > 1 auto port == all ports promisc.

-vlad

> Possibly the comment above made that clear, but it was truncated
> in the diffs.
> 
> 	David
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


WARNING: multiple messages have this Message-ID (diff)
From: Vlad Yasevich <vyasevich@gmail.com>
To: David Laight <David.Laight@ACULAB.COM>,
	'David Miller' <davem@davemloft.net>,
	"makita.toshiaki@lab.ntt.co.jp" <makita.toshiaki@lab.ntt.co.jp>
Cc: "stephen@networkplumber.org" <stephen@networkplumber.org>,
	"vyasevic@redhat.com" <vyasevic@redhat.com>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH v2 net-next] bridge: Fix incorrect judgment of promisc
Date: Fri, 06 Jun 2014 10:13:29 -0400	[thread overview]
Message-ID: <5391CC89.1030104@gmail.com> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D1725853E@AcuExch.aculab.com>

On 06/06/2014 04:48 AM, David Laight wrote:
> From: David Miller [mailto:davem@davemloft.net]
>>> br_manage_promisc() incorrectly expects br_auto_port() to return only 0
>>> or 1, while it actually returns flags, i.e., a subset of BR_AUTO_MASK.
>>>
>>> Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
>>
>> I'm applying this as-is for now, even though I saw the other
>> suggestions in this thread (which BTW didn't get picked up by
>> patchwork, maybe some of you dropped the Message-Id in your replies by
>> accident).
> 
> I don't have a problem with that.
> The condition looks odd, but it is enabling promiscuous mode
> if any other ports are in 'auto' mode.

No, the condition is correct and explicit.  The cases are:
  0 auto ports == all ports are statically configured and non-promisc.
  1 auto port == only this port can be non-promisc.  all others promisc.
  > 1 auto port == all ports promisc.

-vlad

> Possibly the comment above made that clear, but it was truncated
> in the diffs.
> 
> 	David
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

  reply	other threads:[~2014-06-06 14:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-05 11:53 [Bridge] [PATCH v2 net-next] bridge: Fix incorrect judgment of promisc Toshiaki Makita
2014-06-05 11:53 ` Toshiaki Makita
2014-06-05 12:30 ` [Bridge] " Michael S. Tsirkin
2014-06-05 12:30   ` Michael S. Tsirkin
2014-06-05 13:01   ` [Bridge] " Toshiaki Makita
2014-06-05 13:01     ` Toshiaki Makita
2014-06-05 14:57     ` [Bridge] " Vlad Yasevich
2014-06-05 14:57       ` Vlad Yasevich
2014-06-05 22:21 ` [Bridge] " David Miller
2014-06-05 22:21   ` David Miller
2014-06-06  8:48   ` [Bridge] " David Laight
2014-06-06  8:48     ` David Laight
2014-06-06 14:13     ` Vlad Yasevich [this message]
2014-06-06 14:13       ` Vlad Yasevich

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