diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 86a258d..629b061 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -98,7 +98,7 @@
 	return container_of(sk, struct netlink_sock, sk);
 }
 
-static inline int netlink_is_kernel(const struct sock *sk)
+static inline int netlink_is_kernel(struct sock *sk)
 {
 	return nlk_sk(sk)->flags & NETLINK_KERNEL_SOCKET;
 }