netdev - Re: [UML]: uml-net: don't set IFF_ALLMULTI in set_multicast

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Date:	Wed, 26 Mar 2008 00:16:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	jeff@...zik.org, jdike@...toit.com,
	user-mode-linux-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: [UML]: uml-net: don't set IFF_ALLMULTI in set_multicast_list

From: Patrick McHardy <kaber@...sh.net>
Date: Wed, 26 Mar 2008 07:13:51 +0100

> Jeff Garzik wrote:
> >>  static void uml_net_set_multicast_list(struct net_device *dev)
> >>  {
> >> -    if (dev->flags & IFF_PROMISC)
> >> -        return;
> >> -    else if (dev->mc_count)
> >> -        dev->flags |= IFF_ALLMULTI;
> >> -    else dev->flags &= ~IFF_ALLMULTI;
> >> +    return;
> >>  }
> > 
> > 
> > 
> > Might as well just delete the hook at that point...
> 
> 
> I kept it so SIOCADDMULTI/SIOCDELMULTI ioctls continue to
> work on UML devices. I don't know if any userspace applications
> check for errors when using these ioctls, this way nothing
> can break.

Good idea, patch applied to net-2.6, thanks!
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