From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net: Add compat ioctl support for the ipv4 multicast
 ioctl SIOCGETSGCNT
Date: Thu, 03 Feb 2011 17:19:18 -0800 (PST)
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From: Arnd Bergmann <arnd@arndb.de>
Date: Sun, 30 Jan 2011 19:59:53 +0100

> * ip multicast actually needs support for SIOCGETVIFCNT in
>   addition to SIOCGETSGCNT to be complete.
> * ipv6 multicast needs the same patch as ipv4 multicast for
>   SIOCGETMIFCNT_IN6/SIOCGETSGCNT_IN6.
> 
> It would probably be a good idea if someone could complete the
> work on ipv4/v6 multicast compat_ioctl, on top of your patch.

Actually, on top of this, Eric's patch is buggy.

He defines the "struct compat_sioc_sg_req" but doesn't actually
use it.

I'll fix that, then take care of the missing cases.  Thanks Arnd.