From: Patrick McHardy <redacted>
Date: Wed, 26 Mar 2008 07:13:51 +0100

Jeff Garzik wrote:

quoted

quoted

 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!