netdev - Re: [NET 02/05]: dev_mcast: add multicast list synchronization helpers

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Message-Id: <20070714.185237.122619429.davem@davemloft.net>
Date:	Sat, 14 Jul 2007 18:52:37 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	netdev@...r.kernel.org, greearb@...delatech.com
Subject: Re: [NET 02/05]: dev_mcast: add multicast list synchronization
 helpers

From: Patrick McHardy <kaber@...sh.net>
Date: Thu, 12 Jul 2007 20:13:42 +0200 (MEST)

> [NET]: dev_mcast: add multicast list synchronization helpers
> 
> The method drivers currently use to synchronize multicast lists is not
> very pretty:
> 
> - walk the multicast list
> - search each entry on a copy of the previous list
> - if new add to lower device
> - walk the copy of the previous list
> - search each entry on the current list
> - if removed delete from lower device
> - copy entire list
> 
> This patch adds a new field to struct dev_addr_list to store the
> synchronization state and adds two helper functions for synchronization
> and cleanup.
> 
> Signed-off-by: Patrick McHardy <kaber@...sh.net>

Applied.
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