On Sat, Aug 06, 2005 at 09:37:00PM +0200, Patrick McHardy ([EMAIL PROTECTED])
wrote:
> I'm working on extending netlink to work with an arbitary number
> of groups and stumbled over this in the w1 driver:
>
> dev->groups = 23
>
> NETLINK_CB(skb).dst_group = dev->groups;
> netlink_broadcast(dev->nls, skb, 0, dev->groups, GFP_ATOMIC);
>
> Apparently it wants to send to multiple groups at once, is that correct?
> Why does it need to do so? One limitation introduced by my patches will
> be that broadcasting to multiple groups won't be possible anymore and
> this is the only code in the kernel that uses this feature of netlink.
23 was selected arbitrary - w1 definitely can live without multicast.
According to complete removal of multicast feature - it is qiute
usefull, maybe it is better to make it per-socket.
And will not it break RTMGRP_* messages?
--
Evgeniy Polyakov
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