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-rw-r--r--backport/compat/backport-4.12.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/backport/compat/backport-4.12.c b/backport/compat/backport-4.12.c
index f997b6c5..5e763084 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);