tcpnv: do not export local function

The TCP New Vegas congestion control was exporting an internal
function tcpnv_get_info which is not used by any other in tree
kernel code. Make it static.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/tcp_nv.c

@@ -424,7 +424,7 @@ static void tcpnv_acked(struct sock *sk, const struct ack_sample *sample)
 }
 
 /* Extract info for Tcp socket info provided via netlink */
-size_t tcpnv_get_info(struct sock *sk, u32 ext, int *attr,
+static size_t tcpnv_get_info(struct sock *sk, u32 ext, int *attr,
 			     union tcp_cc_info *info)
 {
 	const struct tcpnv *ca = inet_csk_ca(sk);
@@ -440,7 +440,6 @@ size_t tcpnv_get_info(struct sock *sk, u32 ext, int *attr,
 	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(tcpnv_get_info);
 
 static struct tcp_congestion_ops tcpnv __read_mostly = {
 	.init		= tcpnv_init,