[PATCH net-next] net/tls: Fix unused function warning

[YueHaibing]

If PROC_FS is not set, gcc warning this:

net/tls/tls_proc.c:23:12: warning:
 'tls_statistics_seq_show' defined but not used [-Wunused-function]

Use #ifdef to guard this.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 net/tls/tls_proc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/tls/tls_proc.c b/net/tls/tls_proc.c
index 83d9c80..3a5dd1e 100644
--- a/net/tls/tls_proc.c
+++ b/net/tls/tls_proc.c
@@ -6,6 +6,7 @@
 #include <net/snmp.h>
 #include <net/tls.h>
 
+#ifdef CONFIG_PROC_FS
 static const struct snmp_mib tls_mib_list[] = {
 	SNMP_MIB_ITEM("TlsCurrTxSw", LINUX_MIB_TLSCURRTXSW),
 	SNMP_MIB_ITEM("TlsCurrRxSw", LINUX_MIB_TLSCURRRXSW),
@@ -32,6 +33,7 @@ static int tls_statistics_seq_show(struct seq_file *seq, void *v)
 
 	return 0;
 }
+#endif
 
 int __net_init tls_proc_init(struct net *net)
 {
-- 
2.7.4