From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 16 Nov 2017 14:38:54 +0000 (+0100)
Subject: backports: fix events with extack backport
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=47a8c0a144b873ca62ef6d000286464db0519292;p=openwrt%2Fstaging%2Fblogic.git

backports: fix events with extack backport

The multicast group offset needs to be synced after registering the
family, otherwise multicast messages will use the wrong id

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/backport/compat/backport-4.12.c b/backport/compat/backport-4.12.c
index f997b6c5161d..5e7630845a10 100644
--- a/backport/compat/backport-4.12.c
+++ b/backport/compat/backport-4.12.c
@@ -224,6 +224,7 @@ int bp_extack_genl_register_family(struct genl_family *family)
 
 	/* copy this since the family might access it directly */
 	family->attrbuf = copy->family.attrbuf;
+	family->mcgrp_offset = copy->family.mcgrp_offset;
 
 	mutex_lock(&copies_mutex);
 	list_add_tail(&copy->list, &copies_list);