From 2a94fe48f32ccf7321450a2cc07f2b724a444e5b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 19 Nov 2013 15:19:39 +0100 Subject: genetlink: make multicast groups const, prevent abuse Register generic netlink multicast groups as an array with the family and give them contiguous group IDs. Then instead of passing the global group ID to the various functions that send messages, pass the ID relative to the family - for most families that's just 0 because the only have one group. This avoids the list_head and ID in each group, adding a new field for the mcast group ID offset to the family. At the same time, this allows us to prevent abusing groups again like the quota and dropmon code did, since we can now check that a family only uses a group it owns. Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- net/wimax/wimax-internal.h | 1 - 1 file changed, 1 deletion(-) (limited to 'net/wimax/wimax-internal.h') diff --git a/net/wimax/wimax-internal.h b/net/wimax/wimax-internal.h index 8567d3079a83..b445b82020a8 100644 --- a/net/wimax/wimax-internal.h +++ b/net/wimax/wimax-internal.h @@ -86,7 +86,6 @@ void wimax_rfkill_rm(struct wimax_dev *); /* generic netlink */ extern struct genl_family wimax_gnl_family; -extern struct genl_multicast_group wimax_gnl_mcg; /* ops */ int wimax_gnl_doit_msg_from_user(struct sk_buff *skb, struct genl_info *info); -- cgit