diff --git a/include/net/sock.h b/include/net/sock.h
index a98c71ea40c5b339dc11dbc109ff3b301d347725..7aa78440559a47db8e5ccc8ea69a34f87b90c125 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1045,11 +1045,6 @@ struct proto {
 int proto_register(struct proto *prot, int alloc_slab);
 void proto_unregister(struct proto *prot);
 
-static inline bool memcg_proto_active(struct cg_proto *cg_proto)
-{
-	return test_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
-}
-
 #ifdef SOCK_REFCNT_DEBUG
 static inline void sk_refcnt_debug_inc(struct sock *sk)
 {
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3033e6c42229523b065392fcbde7f907668763f2..1742a2db89c7beaa70bef4fc90340d25e25ebc88 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -315,7 +315,7 @@ void sock_update_memcg(struct sock *sk)
 		rcu_read_lock();
 		memcg = mem_cgroup_from_task(current);
 		cg_proto = sk->sk_prot->proto_cgroup(memcg);
-		if (cg_proto && memcg_proto_active(cg_proto) &&
+		if (cg_proto && test_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags) &&
 		    css_tryget_online(&memcg->css)) {
 			sk->sk_cgrp = cg_proto;
 		}