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-rw-r--r--net/sched/ematch.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 24837391640d..f3a104e323bd 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -222,6 +222,19 @@ static int tcf_em_validate(struct tcf_proto *tp,
if (em->ops == NULL) {
err = -ENOENT;
+#ifdef CONFIG_KMOD
+ __rtnl_unlock();
+ request_module("ematch-kind-%u", em_hdr->kind);
+ rtnl_lock();
+ em->ops = tcf_em_lookup(em_hdr->kind);
+ if (em->ops) {
+ /* We dropped the RTNL mutex in order to
+ * perform the module load. Tell the caller
+ * to replay the request. */
+ module_put(em->ops->owner);
+ err = -EAGAIN;
+ }
+#endif
goto errout;
}