netdev - Re: Fwd: [PATCH] [-mm] ACPI: export ACPI events via netlink

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Message-ID: <468504FE.9000502@trash.net>
Date:	Fri, 29 Jun 2007 15:11:26 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Johannes Berg <johannes@...solutions.net>
CC:	hadi@...erus.ca, Zhang Rui <rui.zhang@...el.com>,
	netdev@...r.kernel.org,
	"linux-acpi@...r" <linux-acpi@...r.kernel.org>, lenb@...nel.org,
	Thomas Graf <tgraf@...g.ch>
Subject: Re: Fwd: [PATCH] [-mm] ACPI: export ACPI events via netlink

Johannes Berg wrote:
> On Wed, 2007-06-27 at 19:24 -0400, jamal wrote:
> 
> 
>>a) i.e other than the reserved group for controller (which you seem to
>>be taking care of), every other genetlink user has to explicitly
>>register when they need a mcast group. 
> 
> 
> Hm. I'm starting to dislike the dynamic registration the more I think
> about it. Now when a group is unregistered I'd have to unbind everybody
> who's currently using it... At least when I want to enforce
> root/non-root binds which is a further goal.


How about using module references to prevent unloading while sockets
are bound? We already do the same thing for netlink families.
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