[PATCH] sunrpc: wrap debug symobls with CONFIG_SUNRPC_DEBUG

[Min-Hua Chen <minhuadotchen@gmail.com>]

rpc_debug, nfs_debug, nfsd_debug, and nlm_debug are used
if CONFIG_SUNRPC_DEBUG is set. Wrap them with CONFIG_SUNRPC_DEBUG
and fix the following sparse warnings:

net/sunrpc/sysctl.c:29:17: sparse: warning: symbol 'rpc_debug' was not declared. Should it be static?
net/sunrpc/sysctl.c:32:17: sparse: warning: symbol 'nfs_debug' was not declared. Should it be static?
net/sunrpc/sysctl.c:35:17: sparse: warning: symbol 'nfsd_debug' was not declared. Should it be static?
net/sunrpc/sysctl.c:38:17: sparse: warning: symbol 'nlm_debug' was not declared. Should it be static?

Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
---
 net/sunrpc/sysctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index 93941ab12549..887bdeae3c89 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -23,6 +23,8 @@
 
 #include "netns.h"
 
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+
 /*
  * Declare the debug flags here
  */
@@ -38,8 +40,6 @@ EXPORT_SYMBOL_GPL(nfsd_debug);
 unsigned int	nlm_debug;
 EXPORT_SYMBOL_GPL(nlm_debug);
 
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-
 static int proc_do_xprt(struct ctl_table *table, int write,
 			void *buffer, size_t *lenp, loff_t *ppos)
 {
-- 
2.34.1