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SubjectRe: [patch v1, kernel version 3.2.1] Source mode for macvlan interaface
Le lundi 23 janvier 2012 à 13:30 +0100, Stefan Gula a écrit :
> From: Stefan Gula <>
> New mode of macvlan interface called "source" allows one to specify,
> which frames are allowed to be received by given macvlan interface.
> This logic is used only on received frames on underlaying interface.
> The ability to send frames from macvlan interface through underlaying
> interface is not modified. This feature allows one to simulate 802.1x
> mac based VLAN bahaviour by using proper netlink message to configure
> this behavior with utililty such as "ip link" from iproute2 suite.
> Signed-off-by: Stefan Gula <>

Please limit line lengths to 70 chars.

I dont understand your patch description at all, and reading its body I
still dont understand its purpose.

Is it sort of firewall rules (ebtable) or bridging code ?

> +static void macvlan_hash_del_sources(struct macvlan_source_list *list,
> + bool sync)
> +{
> + hlist_del_rcu(&list->hlist);
> + kfree_rcu(list, rcu);
> + if (sync)
> + synchronize_rcu();
> +}
> +

Please explain why are you using synchronize_rcu() here, as there must
be a good reason, but I missed it.

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