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Date:	Fri, 29 Jun 2007 09:11:45 -0400
From:	jamal <>
To:	Johannes Berg <>
Cc:	Zhang Rui <>,,
	"linux-acpi@...r" <>,,
	Thomas Graf <>, Patrick McHardy <>
Subject: Re: Fwd: [PATCH] [-mm] ACPI: export ACPI events via netlink

On Fri, 2007-29-06 at 14:57 +0200, Johannes Berg wrote:
> On Wed, 2007-06-27 at 19:24 -0400, jamal wrote:

> 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... 

I understood you earlier to say only one family (in kernel) can own a
group else it is an error, no? So there is "somebody" but not
BTW, refer to my earlier email in response to Patrick. I think
preserving a group per family is also an interesting idea. i.e
the first 2^16 are reserved/static and the others are in all for
grabs area.

> At least when I want to enforce
> root/non-root binds which is a further goal.

Permissions would be group attributes - maybe something in the group
struct to say who is allowed to bind?

> > c) Use a global hash table to store all the genl_multicast_groups;
> > I think this (handwaving) should be searchable by i) name ii)ID and iii)
> > family. 
> Also, it doesn't look like I'll ever be searching for a group unless we
> want to allow userspace to explicitly ask for a group ID, but I'd think
> it should just get the list of all IDs when asking for family
> information and then cache that.

I think its useful to have the filters in the kernel when
possible/sensible (one of my beefs against netlink in general is it
lacks that).


> johannes

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