Orangefs: sooth most sparse complaints

Signed-off-by: Mike Marshall <hubcap@omnibond.com>
diff --git a/fs/orangefs/pvfs2-debugfs.c b/fs/orangefs/pvfs2-debugfs.c
index 8d118da..ba5bfef 100644
--- a/fs/orangefs/pvfs2-debugfs.c
+++ b/fs/orangefs/pvfs2-debugfs.c
@@ -70,7 +70,7 @@
  * Used to protect data in ORANGEFS_KMOD_DEBUG_FILE and
  * ORANGEFS_KMOD_DEBUG_FILE.
  */
-DEFINE_MUTEX(orangefs_debug_lock);
+static DEFINE_MUTEX(orangefs_debug_lock);
 
 int orangefs_debug_open(struct inode *, struct file *);