Hi Johannes,

On ke, 2014-10-29 at 16:53 +0100, Johannes Berg wrote:

On Wed, 2014-10-29 at 16:50 +0100, Johannes Berg wrote:

quoted

On Mon, 2014-10-27 at 12:44 +0200, Jukka Rissanen wrote:

quoted

+static void mcast_msg(struct sk_buff *mcast_skb, struct genl_info *info)
+{
+	if (info)
+		genl_notify(&hwsim_genl_family, mcast_skb,
+			    genl_info_net(info), info->snd_portid,
+			    HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
+	else
+		genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
+				  HWSIM_MCGRP_CONFIG, GFP_KERNEL);
+}

Also - given the parameters and what this does, that's a bad name for
the function. Never mind that it doesn't have any sort of identifier
(say hwsim_ prefix), it doesn't even do what it says it does.

Or maybe it does? I'm unsure what genl_notify() does...

Yes, genl_notify() will eventually call nlmsg_notify() which will
multicast the message because we have set the group id in the call.

http://lxr.free-electrons.com/source/net/netlink/af_netlink.c#L2856


Cheers,
Jukka