[PATCH v2,net-next] net/sched: remove return value of unregister_tcf_proto_ops

[Zhengchao Shao]

Return value of unregister_tcf_proto_ops is unused, remove it.

Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
---
v1: need to warn if unregister failed. 

 include/net/pkt_cls.h | 2 +-
 net/sched/cls_api.c   | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 8cf001aed858..d9d90e6925e1 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -23,7 +23,7 @@ struct tcf_walker {
 };
 
 int register_tcf_proto_ops(struct tcf_proto_ops *ops);
-int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
+void unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
 
 struct tcf_block_ext_info {
 	enum flow_block_binder_type binder_type;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 9bb4d3dcc994..d20dd1532b48 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -194,7 +194,7 @@ EXPORT_SYMBOL(register_tcf_proto_ops);
 
 static struct workqueue_struct *tc_filter_wq;
 
-int unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
+void unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
 {
 	struct tcf_proto_ops *t;
 	int rc = -ENOENT;
@@ -214,7 +214,10 @@ int unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
 		}
 	}
 	write_unlock(&cls_mod_lock);
-	return rc;
+
+	if (rc)
+		pr_warn("unregister tc filter kind(%s) failed\n", ops->kind);
+
 }
 EXPORT_SYMBOL(unregister_tcf_proto_ops);
 
-- 
2.17.1