diff --git a/net/packet/internal.h b/net/packet/internal.h
index baafc3f3fa25..5f61e59ebbff 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -139,7 +139,7 @@ struct packet_sock {
 	atomic_t		tp_drops ____cacheline_aligned_in_smp;
 };
 
-static struct packet_sock *pkt_sk(struct sock *sk)
+static inline struct packet_sock *pkt_sk(struct sock *sk)
 {
 	return (struct packet_sock *)sk;
 }