netdev - Re: [PATCH net] macvlan: allow to enqueue broadcast pkt on virtual device

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Date:	Sat, 20 Sep 2014 07:31:08 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	nicolas.dichtel@...nd.com, netdev@...r.kernel.org
Subject: Re: [PATCH net] macvlan: allow to enqueue broadcast pkt on virtual
 device

On Fri, Sep 19, 2014 at 04:03:51PM -0400, David Miller wrote:
> From: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> Date: Wed, 17 Sep 2014 10:08:08 +0200
> 
> > Since commit 412ca1550cbe ("macvlan: Move broadcasts into a work queue"), the
> > driver uses tx_queue_len of the master device as the limit of packets enqueuing.
> > Problem is that virtual drivers have this value set to 0, thus all broadcast
> > packets were rejected.
> > Because tx_queue_len was arbitrarily chosen, I replace it with a static limit
> > of 1000 (also arbitrarily chosen).
> > 
> > CC: Herbert Xu <herbert@...dor.apana.org.au>
> > Reported-by: Thibaut Collet <thibaut.collet@...nd.com>
> > Suggested-by: Thibaut Collet <thibaut.collet@...nd.com>
> > Tested-by: Thibaut Collet <thibaut.collet@...nd.com>
> > Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> 
> Herbert please review.

While it would be nice to maintain the ability to chnge this
parameter, I'm fine with this patch as it stands since it fixes
a real regression.

Acked-by: Herbert Xu <herbert@...dor.apana.org.au>

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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