net: Pass kern from net_proto_family.create to sk_alloc

In preparation for changing how struct net is refcounted
on kernel sockets pass the knowledge that we are creating
a kernel socket from sock_create_kern through to sk_alloc.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/irda/af_irda.c

@@ -1100,7 +1100,7 @@ static int irda_create(struct net *net, struct socket *sock, int protocol,
 	}
 
 	/* Allocate networking socket */
-	sk = sk_alloc(net, PF_IRDA, GFP_KERNEL, &irda_proto);
+	sk = sk_alloc(net, PF_IRDA, GFP_KERNEL, &irda_proto, kern);
 	if (sk == NULL)
 		return -ENOMEM;